HCF4521B View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

HCF4521B

24 STAGE FREQUENCY DIVIDER

STMicroelectronics 

1 2 3 4 5 6 7 8 9 10 Next

HCF4521B

IINPUT EQUIVALENT CIRCUIT

BLOCK DIAGRAM

PIN DESCRIPTION

PIN No

10, 11, 12,

13, 14, 15, 1

2

4

7

9

6

3

5

8

16

SYMBOL NAME AND FUNCTION

Q18 to Q24 Outputs Counter

RESET

OUT2

OUT1

IN1

IN2

VSS1

VDD1

VSS

VDD

Reset Input

Output Crystal Oscillator

Output RC Oscillator

Clock Input

Clock Input

Ext. Neg. Supply Voltage

Ext. Pos. Supply Voltage

Negative Supply Voltage

Positive Supply Voltage

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